From 8311715bdf2d0e3446c6875efec945ff1b87fb6b Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Wed, 21 Jun 2017 19:08:27 +0200
Subject: [PATCH] Ensure that SIZEOF_WCHAR_T is defined in wx/chartype.h

This should always the case now, but wasn't when not using configure
(e.g. in MSVC builds) before, so verify this explicitly to ensure that
we don't just silently define wxUSE_UNICODE_UTF16 wrongly, as it
happened before the fix in the previous commit.
---
 include/wx/chartype.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/wx/chartype.h b/include/wx/chartype.h
index 0e81a3344d..3ff445f602 100644
--- a/include/wx/chartype.h
+++ b/include/wx/chartype.h
@@ -175,6 +175,10 @@
     #define wxUSE_UTF8_LOCALE_ONLY 0
 #endif
 
+#ifndef SIZEOF_WCHAR_T
+    #error "SIZEOF_WCHAR_T must be defined before including this file in wx/defs.h"
+#endif
+
 #if wxUSE_UNICODE_WCHAR && SIZEOF_WCHAR_T == 2
     #define wxUSE_UNICODE_UTF16 1
 #else